An employee reports that they suddenly cannot access the network on their company laptop while other colleagues have no such issues. You verify the laptop's physical connections and confirm that Wi-Fi is enabled. What should be your next step in troubleshooting this issue?
Check the device's IP configuration.
Check for network security certificate expiration.
Ensure the device's Wi-Fi switch is on.
Verify if Bluetooth is enabled, as it can interfere with Wi-Fi.